Feasibility studies for the measurement of single-spin asymmetry in inclusive K0 s production at pion beam at U-70

Autor:	M. B. Nurusheva, N. K. Kalugin, V. L. Rykov, A. N. Vasiliev, D. A. Morozov, V. V. Mochalov, V. V. Moiseev, P. A. Semenov
Rok vydání:	2020
Předmět:	Nuclear physics Physics History Pion beam media_common.quotation_subject Asymmetry U-70 Computer Science Applications Education Spin-½ media_common
Zdroj:	Journal of Physics: Conference Series. 1690:012069
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/1690/1/012069
Popis:	In the Spring 2018, the first physics data was accumulated in the new SPASCHARM experiment at U-70 accelerator of IHEP, Protvino. The first stage of SPASCHARM’s physics programs prursues the goal of studying spin effects in the beam fragmentation region at an unpolarized negative 28 GeV beam, interacting with a frozen polarized proton target. In this resport, the feasibility of measuring the single spin asymmetry AN in the reaction: π − + p↑→K 0 S + X is evaluated by Monte-Carlo simulations. We present estimates of the detection efficiency as well as for expected event statistics. It is shown that, in the process of interest above, the attainable statistical errors for AN would be at the scale of a few percents.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dc51683d185fb377f47bd5f670dc0b88 https://doi.org/10.1088/1742-6596/1690/1/012069 Zobrazit plný text záznamu